ELIZA

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346933 occurrences (No.53 in the rank) during 5 years in the PubMed. [cache]

272) Magnetic resonance elastography (MRE), based on shear wave propagation generated by a specific driver, is a non-invasive exam performed in clinical practice to improve the liver diagnosis.

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PMID:23947476 DOI:10.1080/10255842.2013.818664

2015 Computer methods in biomechanics and biomedical engineering

* Identification process based on shear wave propagation within a phantom using finite element modelling and magnetic resonance elastography.

- Magnetic resonance elastography (MRE), based on shear wave propagation generated by a specific driver, is a non-invasive exam performed in clinical practice to improve the liver diagnosis. The purpose was to develop a finite element (FE) identification method for the mechanical characterisation of phantom mimicking soft tissues investigated with MRE technique. Thus, a 3D FE phantom model, composed of the realistic MRE liver boundary conditions, was developed to simulate the shear wave propagation with the software ABAQUS. The assumptions of homogeneity and elasticity were applied to the FE phantom model. Different ranges of mesh size, density and Poisson's ratio were tested in order to develop the most representative FE phantom model. The simulated wave displacement was visualised with a dynamic implicit analysis. Subsequently, an identification process was performed with a cost function and an optimisation loop provided the optimal elastic properties of the phantom. The present identification process was validated on a phantom model, and the perspective will be to apply this method on abdominal tissues for the set-up of new clinical MRE protocols that could be applied for the follow-up of the effects of treatments.

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(1)142 the	(8)4 data	(15)2 clinical	(22)2 partial
(2)40 a	(9)4 our	(16)2 combined	(23)2 previous
(3)19 these	(10)4 two	(17)2 current	(24)2 radiological
(4)9 their	(11)3 16S	(18)2 functional	(25)2 sequences
(5)7 this	(12)3 an	(19)2 histological	(26)2 shear
(6)5 its	(13)2 all	(20)2 interviews	(27)2 small
(7)4 both	(14)2 changes	(21)2 morphology	(28)2 surveys

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--- WordNet output for based --- =>に基づき Overview of verb base The verb base has 3 senses (first 1 from tagged texts) 1. (75) establish, base, ground, found -- (use as a basis for; found on; "base a claim on some observation") 2. base -- (situate as a center of operations; "we will base this project in the new lab") 3. free-base, base -- (use (purified cocaine) by burning it and inhaling the fumes) Overview of adj based The adj based has 2 senses (first 2 from tagged texts) 1. (3) based -- (having a base; "firmly based ice") 2. (1) based -- (having a base of operations (often used as a combining form); "a locally based business"; "an Atlanta-based company"; "carrier-based planes") --- WordNet end ---